Sonos: Flashing red
A new or factory-reset product was not set up within 30 minutes of being powered on.
Applies to: Sonos speakers and components. What you see: red, flashing or blinking.
What Sonos says to do
- Reboot the product to clear it, then set it up.
Source
Sonos’s own support page, read on the date shown.
- Sonos: Sonos LED lights — Sonos speakers, portable speakers and components (status light section). support.sonos.com Checked 2026-09-29.
The same colour on other speakers
Another maker’s speaker can use this colour for something else entirely.